1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
package tim.prune.load.xml;
import java.util.ArrayList;
import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;
import tim.prune.data.ExtensionInfo;
import tim.prune.data.Field;
import tim.prune.data.FileType;
/**
* Abstract superclass of xml handlers
*/
public abstract class XmlHandler extends DefaultHandler
{
private FileType _fileType = null;
private int _fileVersion = VERSION_UNKNOWN;
private final ArrayList<Field> _fieldList = new ArrayList<>();
private String[] _currentValues = null;
private static final int VERSION_UNKNOWN = -1;
/**
* Method for returning data loaded from file
* @return 2d String array containing data
*/
public abstract String[][] getDataArray();
/** Add a field to the list */
protected void addField(Field inField) {
_fieldList.add(inField);
}
/** @return true if the given field is already present in the list */
protected boolean hasField(Field inField)
{
for (Field field : _fieldList)
{
if (field.equals(inField)) {
return true;
}
}
return false;
}
/** @return index of the given field in the list */
protected int getFieldIndex(Field inField)
{
int index = 0;
for (Field field : _fieldList)
{
if (field.equals(inField)) {
return index;
}
index++;
}
return -1;
}
/**
* @return field array describing fields of data
*/
public final Field[] getFieldArray() {
return _fieldList.toArray(new Field[0]);
}
/** Reset the current values array for the next point */
protected void resetCurrentValues() {
_currentValues = new String[_fieldList.size()];
}
/**
* Add a field value to the current point
* @param inField field
* @param inValue value
*/
protected void addCurrentValue(Field inField, String inValue)
{
if (inValue == null || inValue.isEmpty()) {
return;
}
int index = getFieldIndex(inField);
if (_currentValues == null || _currentValues.length <= index)
{
String[] newValues = new String[_fieldList.size()];
if (_currentValues != null) {
System.arraycopy(_currentValues, 0, newValues, 0, _currentValues.length);
}
_currentValues = newValues;
}
_currentValues[index] = inValue;
}
/** @return the value array for the current point */
protected String[] getCurrentValues() {
return _currentValues;
}
/**
* Can be overridden (eg by gpx handler) to provide an array of links to media
* @return array of Strings if any, or null
*/
public String[] getLinkArray() {
return null;
}
/** Set the file type */
protected void setFileType(FileType inType) {
_fileType = inType;
}
/** @return the identified file type */
public FileType getFileType() {
return _fileType;
}
public void setFileVersion(String inVersion)
{
if (inVersion != null && inVersion.length() == 3
&& inVersion.charAt(1) == '.')
{
try {
_fileVersion = 10 * Integer.parseInt(inVersion.substring(0, 1))
+ Integer.parseInt(inVersion.substring(2, 3));
}
catch (NumberFormatException ignored) {}
}
}
/** @return version number as string (like "1.0"), or "" if unknown */
public String getFileVersion()
{
if (_fileVersion == VERSION_UNKNOWN) {
return "";
}
return (_fileVersion / 10) + "." + (_fileVersion % 10);
}
/**
* @return the title of the file, or null
*/
public abstract String getFileTitle();
/**
* Can be overridden (eg by gpx handler) to provide the description of the file
* @return file description, or null
*/
public String getFileDescription() {
return null;
}
/**
* @return the information about the Xml extensions, or null
*/
public abstract ExtensionInfo getExtensionInfo();
/** @return value of named attribute, or null if not found */
protected static String getAttribute(Attributes inAttributes, String inName)
{
final String name = inName.toLowerCase();
final int numAttributes = inAttributes.getLength();
for (int i=0; i<numAttributes; i++)
{
String att = inAttributes.getQName(i).toLowerCase();
if (att.equals(name)) {
return inAttributes.getValue(i);
}
}
return null;
}
}
|
